Patents by Inventor Vijayshekhar Araganji
Vijayshekhar Araganji has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230326647Abstract: A rotary variable differential transformer for measuring angular displacement and method of manufacturing the same are provided herein. The rotary variable differential transformer includes a stator configured to house a primary coil configured to receive an alternating current, a first secondary coil electromagnetically coupled to the primary coil, and a second secondary coil electromagnetically coupled to the primary coil. The rotary variable differential transformer also includes a rotor positioned concentrically within the stator. The rotor is configured to receive a shaft and rotate with the shaft while the stator remains stationary. The primary coil is positioned at a first radial position within the stator spaced between about 90 to 150 degrees from each of the first secondary coil and the second secondary coil.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Inventors: Paresh SANCHIHAR, Subramanian ESAKKI, Vijayshekhar ARAGANJI
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Patent number: 11715587Abstract: A rotary variable differential transformer for measuring angular displacement and method of manufacturing the same are provided herein. The rotary variable differential transformer includes a stator configured to house a primary coil configured to receive an alternating current, a first secondary coil electromagnetically coupled to the primary coil, and a second secondary coil electromagnetically coupled to the primary coil. The rotary variable differential transformer also includes a rotor positioned concentrically within the stator. The rotor is configured to receive a shaft and rotate with the shaft while the stator remains stationary. The primary coil is positioned at a first radial position within the stator spaced between about 90 to 150 degrees from each of the first secondary coil and the second secondary coil.Type: GrantFiled: May 24, 2019Date of Patent: August 1, 2023Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Paresh Sanchihar, Subramanian Esakki, Vijayshekhar Araganji
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Publication number: 20230147074Abstract: Apparatuses, systems, and methods for sensing rotary positions are provided. For example, an example rotary position sensor includes a rotor assembly having a rotor assembly opening for securing the rotor assembly to a shaft structure, a stator assembly having a stator assembly opening for receiving the shaft structure, and a base assembly secured to the stator assembly. In some examples, the base assembly (such as, but not limited to, a PCB assembly) comprises a plurality of primary coil elements printed on a first side of the base assembly and a plurality of secondary coil elements printed on a second side of the base assembly.Type: ApplicationFiled: October 20, 2022Publication date: May 11, 2023Inventors: Subramanian ESAKKI, John JERRED, Stephen TILLOTSON, Paresh SANCHIHAR, Vijayshekhar ARAGANJI
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Patent number: 10955263Abstract: Apparatuses, systems, and associated methods of assembly are described that provide for improved sensor devices. An example sensor device includes a bobbin tube that defines a hollow interior. The device includes a primary coil element wound around the bobbin tube configured to, in response to a current input, generate a primary magnetic flux and includes a secondary coil element wound around the primary coil element. In an instance in which the bobbin tube receives a probe assembly therein, magnetic interaction between the probe assembly and the primary coil element is configured to induce a signal in the secondary coil element. Furthermore, a pitch of the secondary coil element varies according to a non-linear, polynomial function along a second length of the bobbin tube so as to reduce linearity error of the sensor device.Type: GrantFiled: April 18, 2019Date of Patent: March 23, 2021Assignee: Honeywell International Inc.Inventors: Subramanian Esakki, Aaron Daniels, Vijayshekhar Araganji
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Publication number: 20200373056Abstract: A rotary variable differential transformer for measuring angular displacement and method of manufacturing the same are provided herein. The rotary variable differential transformer includes a stator configured to house a primary coil configured to receive an alternating current, a first secondary coil electromagnetically coupled to the primary coil, and a second secondary coil electromagnetically coupled to the primary coil. The rotary variable differential transformer also includes a rotor positioned concentrically within the stator. The rotor is configured to receive a shaft and rotate with the shaft while the stator remains stationary. The primary coil is positioned at a first radial position within the stator spaced between about 90 to 150 degrees from each of the first secondary coil and the second secondary coil.Type: ApplicationFiled: May 24, 2019Publication date: November 26, 2020Inventors: Paresh SANCHIHAR, Subramanian ESAKKI, Vijayshekhar ARAGANJI
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Publication number: 20200333168Abstract: Apparatuses, systems, and associated methods of assembly are described that provide for improved sensor devices. An example sensor device includes a bobbin tube that defines a hollow interior. The device includes a primary coil element wound around the bobbin tube configured to, in response to a current input, generate a primary magnetic flux and includes a secondary coil element wound around the primary coil element. In an instance in which the bobbin tube receives a probe assembly therein, magnetic interaction between the probe assembly and the primary coil element is configured to induce a signal in the secondary coil element. Furthermore, a pitch of the secondary coil element varies according to a non-linear, polynomial function along a second length of the bobbin tube so as to reduce linearity error of the sensor device.Type: ApplicationFiled: April 18, 2019Publication date: October 22, 2020Inventors: Subramanian ESAKKI, Aaron DANIELS, Vijayshekhar ARAGANJI
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Patent number: 10332675Abstract: Embodiments generally relate to linear variable displacement transformer (LVDT) position sensors. The position sensor comprises a bobbin, a moveable core, a primary coil of wire wound around the bobbin, and two secondary coils of wire wound around the bobbin about the primary coil using a fractional winding technique. For example, the winding length of the bobbin may be separated into three consecutive parts. Generally, the primary coil may be wound around the entire winding length of the bobbin. The first secondary coil may be wound around the first and second parts of the winding length. The second secondary coil may be wound around the second and third parts of the winding length. Additionally, the first secondary coil and the second secondary coil may overlap over the second part of the winding length.Type: GrantFiled: January 9, 2017Date of Patent: June 25, 2019Assignee: Honeywell International Inc.Inventors: Subramanian Esakki, Keshava Prasad, Vijayshekhar Araganji, Aaron Daniels, John Jerred
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Patent number: 10267654Abstract: Apparatus and associated methods relate to a linear variable differential transformer (LVDT) having at least one a flexible element attached to a bobbin, where the bobbin is made from thermoplastic material having a coefficient of thermal expansion (CTE) matched to a coil wire of the LVDT. In an illustrative example, the flexible element may include a flexible substrate located between the bobbin and an enclosure of the LVDT. The flexible element provides temperature compensation by absorbing mechanical stresses and/or electro-thermal stresses for the LVDT, while the thermoplastic bobbin provides thermal stability to the LVDT by mitigating breakage of the LVDT coils due to expansion of the bobbin in response to temperature variations.Type: GrantFiled: November 21, 2016Date of Patent: April 23, 2019Assignee: Honeywell International Inc.Inventors: Aaron Daniels, Paresh Sanchihar, Murgesh R Sajjan, Vijayshekhar Araganji
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Patent number: 10024692Abstract: A transformer includes a bobbin, a primary coil, and a pair of secondary coils. The bobbin has an axial bore formed therein. The primary coil is wound on the bobbin and is adapted to be electrically excited with an excitation signal. The secondary coils are disposed adjacent to the primary coil, and are inductively coupled to the primary coil upon electrical excitation of the primary coil. The primary coil is wound on the bobbin such that at least a portion of the primary coil has a cross section shape that is a trapezoid.Type: GrantFiled: July 22, 2015Date of Patent: July 17, 2018Assignee: Honeywell International Inc.Inventors: Subramanian Esakki, Paresh Sanchihar, Vijayshekhar Araganji, Kumaran Sena Narasimhan
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Publication number: 20180197677Abstract: Embodiments generally relate to linear variable displacement transformer (LVDT) position sensors. The position sensor comprises a bobbin, a moveable core, a primary coil of wire wound around the bobbin, and two secondary coils of wire wound around the bobbin about the primary coil using a fractional winding technique. For example, the winding length of the bobbin may be separated into three consecutive parts. Generally, the primary coil may be wound around the entire winding length of the bobbin. The first secondary coil may be wound around the first and second parts of the winding length. The second secondary coil may be wound around the second and third parts of the winding length. Additionally, the first secondary coil and the second secondary coil may overlap over the second part of the winding length.Type: ApplicationFiled: January 9, 2017Publication date: July 12, 2018Inventors: Subramanian Esakki, Keshava Prasad, Vijayshekhar Araganji, Aaron Daniels, John Jerred
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Publication number: 20180143038Abstract: Embodiments relate generally to an LVDT for use in an actuator to accurately measure the movement and position of the different elements used in stabilization. The LVDT may comprise an amalgamation of a plurality of elements to decrease the total number of elements in the LVDT. For example, the LVDT may comprise a bobbin that is formed to incorporate other elements, such as washers, strain relief elements, etc. Additionally, the enclosure may be enabled to function as the return path for the LVDT. Additionally, the LVDT may comprise elements that provide thermal compensation by relieving stresses imposed on the LVDT. Also, the LVDT may comprise elements that allow for adjusting thermal offset within the LVDT.Type: ApplicationFiled: November 21, 2016Publication date: May 24, 2018Inventors: Aaron Daniels, Paresh Sanchihar, Murgesh R. Sajjan, Vijayshekhar Araganji
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Publication number: 20160334245Abstract: A transformer includes a bobbin, a primary coil, and a pair of secondary coils. The bobbin has an axial bore formed therein. The primary coil is wound on the bobbin and is adapted to be electrically excited with an excitation signal. The secondary coils are disposed adjacent to the primary coil, and are inductively coupled to the primary coil upon electrical excitation of the primary coil. The primary coil is wound on the bobbin such that at least a portion of the primary coil has a cross section shape that is a trapezoid.Type: ApplicationFiled: July 22, 2015Publication date: November 17, 2016Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Subramanian Esakki, Paresh Sanchihar, Vijayshekhar Araganji, Kumaran Sena Narasimhan
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Publication number: 20160320206Abstract: A position sensor includes a rotor configured to be coupled to the rotatable element for rotation therewith, a non-rotationally mounted stator, a magnet non-rotationally disposed adjacent to the stator and spaced apart from the rotor, a first magnetic sensor non-rotationally mounted between the stator and the rotor, and a second magnetic sensor non-rotationally mounted between the stator and the rotor. The rotor is constructed at least partially of a magnetically permeable material and including a first rotor pole. The stator is spaced apart from the rotor and includes a first stator pole and a second stator pole, which are spaced radially apart from each other. The first magnetic sensor is disposed adjacent the first stator pole and radially offset from the second stator pole, and the second magnetic sensor is disposed adjacent the second main pole and radially offset from the first stator pole.Type: ApplicationFiled: July 8, 2016Publication date: November 3, 2016Inventors: Girish Krishnaiah, Gangi Reddy Rajula, Bharath Mahalingam, Vijayshekhar Araganji, Sivasubramanian Srinivasan, John Kenneth Tillotson, James Sorenson, Danial Lewis Kosht
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Patent number: 9417098Abstract: A position sensor for sensing whether a rotatable element is in at least a first rotational position or a second rotational position is provided. A rotor is configured to be coupled to the rotatable element for rotation therewith, and is constructed at least partially of a magnetically permeable material and includes a first rotor pole. A stator is non-rotationally mounted, is constructed at least partially of a magnetically permeable material, is spaced apart from the rotor, and comprises a first main pole and a first stealer pole. The first main pole and the first stealer pole are spaced radially apart from each other. A magnet is non-rotationally disposed adjacent to the stator and is spaced apart from the rotor. A first magnetic sensor is non-rotationally mounted between the stator and the rotor, is disposed adjacent the first main pole, and is radially offset from the first stealer pole.Type: GrantFiled: July 18, 2011Date of Patent: August 16, 2016Assignee: Honeywell International Inc.Inventors: Girish Krishnaiah, Gangi Reddy Rajula, Bharath Mahalingam, Vijayshekhar Araganji, Sivasubramanian Srinivasan, John Kenneth Tillotson, James Sorenson, Danial Lewis Kosht
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Publication number: 20130021025Abstract: A position sensor for sensing whether a rotatable element is in at least a first rotational position or a second rotational position is provided. A rotor is configured to be coupled to the rotatable element for rotation therewith, and is constructed at least partially of a magnetically permeable material and includes a first rotor pole. A stator is non-rotationally mounted, is constructed at least partially of a magnetically permeable material, is spaced apart from the rotor, and comprises a first main pole and a first stealer pole. The first main pole and the first stealer pole are spaced radially apart from each other. A magnet is non-rotationally disposed adjacent to the stator and is spaced apart from the rotor. A first magnetic sensor is non-rotationally mounted between the stator and the rotor, is disposed adjacent the first main pole, and is radially offset from the first stealer pole.Type: ApplicationFiled: July 18, 2011Publication date: January 24, 2013Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Girish Krishnaiah, Gangi Reddy Rajula, Bharath Mahalingam, Vijayshekhar Araganji, Sivasubramanian Srinivasan, John Kenneth Tillotson, James Sorenson, Danial Lewis Kosht
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Patent number: 8022321Abstract: A hydraulic pressure switch apparatus includes a porous disc directly installed at a media entry port for dampening and filtration purposes. The porous disc includes a number of pores that are connected together and to the surface of the porous disc for allowing media to flow into a base fitting. The media exerts pressure on a piston associated with the base fitting, which in turn is capable of being absorbed by a compression spring. The compression spring transfers a required motion to a plunger associated with a micro switch in order to provide on/off switching capabilities. Electrical indications can then be transferred to a vehicle control unit utilizing a termination connector, based on particular user requirements. The porous disc can be utilized to dampen the pressure spikes and surges, which significantly prolong the life of the pressure switch apparatus in harsh applications.Type: GrantFiled: February 10, 2009Date of Patent: September 20, 2011Assignee: Honeywell International Inc.Inventors: Lokesha Bhat, Vijayshekhar Araganji
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Patent number: 7732722Abstract: A hermetically sealed pressure switch apparatus and method includes a metal bellows directly installed at an inlet port for providing hermetic sealing thereof. A spring (e.g. a wave spring) can be connected in parallel or series combination with the metal bellows. The metal bellows is capable of being extended when an input pressure is applied which in turn compress the wave spring. The compression of the spring transfers a required motion to a plunger associated with an electrical switch in order to actuate the electrical switch when a certain pressure relative to a perfect vacuum is attained. The metal bellows and the spring can be pre-compressed utilizing the plunger in order to maintain switch set point accuracy and spring stiffness.Type: GrantFiled: February 24, 2009Date of Patent: June 8, 2010Assignee: Honeywell International Inc.Inventors: Aparajita Singh, Bharath Mahalingam, Vijayshekhar Araganji, Kevin Haf